TextEditor: Do not trigger autocomplete after user aborts...

... for the same function

Task-number: QTCREATORBUG-5748
Change-Id: Iadf5be76c24f95cf057c2112a8248bea2a9e20cf
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@digia.com>

src/plugins/texteditor/codeassist/functionhintproposalwidget.cpp

@@ -215,6 +215,7 @@ bool FunctionHintProposalWidget::eventFilter(QObject *obj, QEvent *e)
     case QEvent::KeyRelease:
         if (static_cast<QKeyEvent*>(e)->key() == Qt::Key_Escape && d->m_escapePressed) {
             abort();
+            emit explicitlyAborted();
             return false;
         }
         d->m_assistant->notifyChange();